Contact Header

GSMK CryptoPhones are produced by:

GSMK Gesellschaft für sichere Mobile Kommunikation mbH
Marienstrasse 11
D-10117 Berlin

Sales Department:

Service & Support:

Questions on Export Regulations:

General Inquiries:

Tel. +49 (0)30 24625000
Fax +49 (0)30 24625001

For secure e-mail communications with GSMK, please encrypt your e-mails. Our GPG/PGP company key can be found here


GSMK Gesellschaft für sichere mobile Kommunikation mbH
eingetragen im Handelsregister des Amtsgerichts Berlin-Charlottenburg

HRB Nr. 89497

European VAT ID DE 813 827 620

All contents on this web site are copyrighted. Distribution, modification or reproduction in part or in its entirety is strictly prohibited without prior written permission of GSMK. All rights reserved.